Evidence map›Paper›PMID 18758438›Full record

ArticleEMBO reports2008

PP4 is a gamma H2AX phosphatase required for recovery from the DNA damage checkpoint.

Shinichiro Nakada, Ginny I Chen, Anne-Claude Gingras, Daniel Durocher

Erratum issuedOpen access · hybridAbstract readComparative Study
In one paragraph

Article in EMBO reports, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 125 papers.

0numbers the graph read from it
0cells of the map it votes in
125citing papers in PubMed
9.0field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

125 citing papers in PubMed, 203 citations in OpenAlex.

  1. Article
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  7. Histone Phosphorylation in DNA Damage Response.International journal of molecular sciences · 2025
    Review
  8. Article
  9. Global γH2AX phosphorylation inmicroPublication biology · 2025
    Article
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  11. Article
  12. Review
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  15. Article
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65 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

4 authors at 2 institutions in 1 country.

Shinichiro NakadaCentre for Systems Biology, Samuel Lunenfeld Research Institute, Mount Sinai Hospital, 600 University Avenue, Toronto, Ontario M5G 1X5, Canada.
Ginny I Chen
Anne-Claude Gingras
Daniel Durocher
University of Toronto · CAMount Sinai Hospital · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Phosphorylation of histone H2AX on Ser 139 (gammaH2AX) is one of the earliest events in the response to DNA double-strand breaks; however, the subsequent removal of gammaH2AX from chromatin is less understood, despite being a process tightly coordinated with DNA repair. Previous studies in yeast have identified the Pph3 phosphatase (the PP4C orthologue) as important for the dephosphorylation of gammaH2AX. By contrast, work in human cells attributed this activity to PP2A. Here, we report that PP4 contributes to the dephosphorylation of gammaH2AX, both at the sites of DNA damage and in undamaged chromatin in human cells, independently of a role in DNA repair. Furthermore, depletion of PP4C results in a prolonged checkpoint arrest, most likely owing to the persistence of mediator of DNA damage checkpoint 1 (MDC1) at the sites of DNA lesions. Taken together, these results indicate that PP4 is an evolutionarily conserved gammaH2AX phosphatase.

Indexed as

Cell Line, TumorChromatinConserved SequenceDNA DamageDNA RepairEvolution, MolecularG2 PhaseHistonesHumansMitosisPhosphoprotein PhosphatasesPhosphorylationTime FactorsChromatinH2AX protein, humanHistonesPhosphoprotein Phosphatasesprotein phosphatase 4

Identifiers

PMID18758438
PMCPMC2527856
OpenAlexW2051003586

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.